I want to limit special character to maximum value. Like I want the regex to limit at most 3 special character. I am using following regex, but its not working for me. :
(^(?:[^$@!%*?&\n]*[$@!%*?&]){0-2}[^$@!%*?&\n]*$)
CodePudding user response：
You may use this regex to match max 3 special characters:
^(?:[^$@!%*?&]*[$@!%*?&]){0,3}[^$@!%*?&]*$
RegEx Details:
^: Start(?:: Start non-capture group[^$@!%*?&]*: Match 0 or more of any characters that are not inside[...][$@!%*?&]: Match one of these characters inside[...]
){0,3}: End non-capture group. Repeat this group 0 ot 3 times[^$@!%*?&]*: Match 0 or more of any characters that are not inside[...]$: End